I have been hunting Montana for pushing 25 years now, and have been on a week-two week deer hunt most of those years. here is my opinion on some of the things you brought up.
Transportation/camping- Camping out of a vehicle is ok if you can get enough padding in there to be comfortable and warm. if you are planning to hunt the rut like most do, November in Montana can get cold. make sure you have a way to warm up. also I would recommend a jet boil or something so you can have a warm meal in there some where it feels good on the cold days. Bring a camp chair so you can just sit at some point, sitting on the ground all the time can be rough. I have a gardeners pad that i strap to my pack so I don't have to sit on the rocks when glassing.
pack- I have nothing, kept reducing what I brought into the woods to just a compass, knife, water bottle, some mule tape, 5 extra shells and my rifle. You will need what you need, I always have game bags as well as garbage bags in my pack. that way the meat can go into the game bags and then in a garbage sack so my pack does not get all bloody, after a couple weeks of bloody packs they can start to stink and that's no fun on my back. I take the boned out meat from my pack and put it in a game bag in a cooler. We strictly started doing this a few seasons ago and if the deer is more than a few hundred yards from a vehicle I will not bring it out whole any more. you can put a whole doe in a pack but the buck might take two trips
optics- you will need them. the best way I have found hunting mule deer is get up high and glass, you can hunt them by just walking around, that fine and I see lots of people doing this but I also see lots of people walking by deer while I am glassing them. a range finder is good because the mule deer will be larger and will look closer than they are. its really not that uncommon for shots to be 200-400 yards. I like the vortex line on the lesser prices binos. you would not really know the difference between the higher priced stuff and lower until you have spent many hours behind the glass.
boots/clothes- you boots will be just fine. I would recommend a base layer of merino wool only because if you are going to be hunting out this way you will be walking a bit and you can wear that stuff a few days with out it stinking up. bring camp shoes because taking the boots off at the end of the day is fantastic. I bring bibs with me every year and have only shot a deer with them on once. my layers go merino wool, long sleeve shirt or two, sweatshirt, sometimes a coat when glassing, long john pants, hunting pants, thin socks, sometimes heavier socks just so my feet don't sweat as much two pairs.
rifle/scope- either of your firearms are just fine. pick whatever one you are more comfortable with and go hunt.
extra tips- Things are not always going to go as planned so just be prepared to hunt and have fun, flat tires are common, make sure you have ox, basemaps, or something like that and download the maps before you come. bring a big cooler you will be happy you did, leave evidence of sex on your animal if you are taking it apart, enjoy your time, its an amazing experience. bring a camera so you can take some pictures. Make sure you have a full tank of gas before you leave to a hunting area. if you have other questions just ask.